Crossover exponents for the potts model with quadratic symmetry breaking
dc.contributor.author | Theumann, Walter Karl | pt_BR |
dc.contributor.author | Gusmao, Miguel Angelo Cavalheiro | pt_BR |
dc.date.accessioned | 2014-10-01T02:10:18Z | pt_BR |
dc.date.issued | 1984 | pt_BR |
dc.identifier.issn | 0163-1829 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/103994 | pt_BR |
dc.description.abstract | The effect of quadratic symmetry breaking (QSB) on two representations for the Potts vectors in a continuum-field model are studied to two-loop order in renormalized perturbation theory in d=6-E dimensions, in extension of an earlier group-theoretical analysis by Wallace and Young. The explicit dependence of the crossover exponent ф that corresponds to QSB that destroys the equivalence between pairs of Potts vectors is obtained as a function of d and n for the p-state model with p = n + 1. It is shown that this exponent follows from the calculation of vertex functions in a representation dueto Wallace and Young, whereas a second crossover exponent ф, that can be identified with the criticai exponent β, and which corresponds to QSB that favors a single Potts vector against the others, follows from a calculation using the representation of the Potts vectors due to Priest and Lubensky. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review. B, Condensed matter. New York. Vol. 30, no. 5 (Sept. 1984), p. 2800-2805 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Física da matéria condensada | pt_BR |
dc.subject | Teoria de redes e estatistica | pt_BR |
dc.subject | Quebra de simetria | pt_BR |
dc.title | Crossover exponents for the potts model with quadratic symmetry breaking | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000115614 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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